KEGG   DISEASE: Acid-labile subunit deficiency
Entry
H01907                      Disease                                
Name
Acid-labile subunit deficiency
Description
Acid-labile subunit (ALS) deficiency is characterized by severe reduction of IGF-I and IGFBP-3 that remain low after GH treatment, associated with mild growth retardation. ALS, encoded by the IGFALS gene, is mainly produced by the liver. The patients were found to be carriers for IGFALS gene mutations. ALS protein is a key component of the circulating IGF ternary complex. The main role of ALS is the extension of IGF-I half life by protecting it from degradation and preventing the passage of IGF-I to the extravascular compartment.
Category
Endocrine and metabolic disease
Brite
Human diseases in ICD-11 classification [BR:br08403]
 05 Endocrine, nutritional or metabolic diseases
  Endocrine diseases
   Disorders of the pituitary hormone system
    5A61  Hypofunction or certain other specified disorders of pituitary gland
     H01907  Acid-labile subunit deficiency
Gene
IGFALS [HSA:3483] [KO:K17256]
Comment
See also H00254 Pituitary Dwarfism.
Other DBs
ICD-11: 5A61.0
OMIM: 615961
Reference
  Authors
Domene HM, Hwa V, Jasper HG, Rosenfeld RG
  Title
Acid-labile subunit (ALS) deficiency.
  Journal
Best Pract Res Clin Endocrinol Metab 25:101-13 (2011)
DOI:10.1016/j.beem.2010.08.010
Reference
  Authors
Boisclair YR, Rhoads RP, Ueki I, Wang J, Ooi GT
  Title
The acid-labile subunit (ALS) of the 150 kDa IGF-binding protein complex: an important but forgotten component of the circulating IGF system.
  Journal
J Endocrinol 170:63-70 (2001)
DOI:10.1677/joe.0.1700063
Reference
  Authors
Heath KE, Argente J, Barrios V, Pozo J, Diaz-Gonzalez F, Martos-Moreno GA, Caimari M, Gracia R, Campos-Barros A
  Title
Primary acid-labile subunit deficiency due to recessive IGFALS mutations results in postnatal growth deficit associated with low circulating insulin growth factor (IGF)-I, IGF binding protein-3 levels, and hyperinsulinemia.
  Journal
J Clin Endocrinol Metab 93:1616-24 (2008)
DOI:10.1210/jc.2007-2678
Reference
  Authors
Domene HM, Scaglia PA, Lteif A, Mahmud FH, Kirmani S, Frystyk J, Bedecarras P, Gutierrez M, Jasper HG
  Title
Phenotypic effects of null and haploinsufficiency of acid-labile subunit in a family with two novel IGFALS gene mutations.
  Journal
J Clin Endocrinol Metab 92:4444-50 (2007)
DOI:10.1210/jc.2007-1152
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